send mail in asp.net(C#)2008

[pskvenkat]

Hello,
This is venkat,
I was trying to send the email using the following codes but error occurs everytime can you fix this.

using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Net.Mail;
 
    MailMessage mail = new MailMessage();
        mail.To = ToTextBox.Text;
        mail.From=FromTextBox.Text;
        mail.CC=CcTextBox.Text;
        mail.Subject=SubTextBox.Text;
        mail.Body=MsgTextBox.Text;
        System.Net.Mail.SmtpClient SmtpServer = "localhost";
        SmtpServer.Send(mail);
 

is this correct format? pls send if any correct coding for that? also what are the things should declare in the top?

[GayathriP]

The Port No is not specified to send the email.
It can be done by

SmtpServer.Port = <PortNo>;

[Shashi Sadasivan]

System.Net.Mail.SmtpClient SmtpServer = "localhost";

since you are creating a SmtpClient object you have to create a new one

i.e.
System.Net.Mail.SmtpClient SmtpServer = new System.Net.Mail.SmtpClient("192.168.0.1");
its better to send an ip address to it.
i havent tested it using localhost. (im not sure of that), and yes you may also have to specify the port if it is not on the default smtp port which i thing is 25

[pskvenkat]

System.Net.Mail.SmtpClient SmtpServer = "localhost";

since you are creating a SmtpClient object you have to create a new one

i.e.
System.Net.Mail.SmtpClient SmtpServer = new System.Net.Mail.SmtpClient("192.168.0.1");
its better to send an ip address to it.
i havent tested it using localhost. (im not sure of that), and yes you may also have to specify the port if it is not on the default smtp port which i thing is 25

Can you tel how can i find the smtp server port number?

[Plater]

Can you tel how can i find the smtp server port number?

It probably is 25. The real problem was your incorrect "constructor" calling of the SmtpClient class